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51065060 = 22523313581
BaseRepresentation
bin1100001011001…
…1000011100100
310120002101002112
43002303003210
5101033040220
65022300152
71160021504
oct302630344
9116071075
1051065060
1126908a32
1215127658
13a76c117
146ad3a04
15473a5c5
hex30b30e4

51065060 has 48 divisors (see below), whose sum is σ = 115540992. Its totient is φ = 18902400.

The previous prime is 51065057. The next prime is 51065071. The reversal of 51065060 is 6056015.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12470 + ... + 16050.

It is an arithmetic number, because the mean of its divisors is an integer number (2407104).

Almost surely, 251065060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51065060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57770496).

51065060 is an abundant number, since it is smaller than the sum of its proper divisors (64475932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51065060 is a wasteful number, since it uses less digits than its factorization.

51065060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644 (or 3642 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 51065060 is about 7145.9820878589. The cubic root of 51065060 is about 371.0006030170. Note that the first 3 decimals are identical.

The spelling of 51065060 in words is "fifty-one million, sixty-five thousand, sixty".

Divisors: 1 2 4 5 10 20 23 31 46 62 92 115 124 155 230 310 460 620 713 1426 2852 3565 3581 7130 7162 14260 14324 17905 35810 71620 82363 111011 164726 222022 329452 411815 444044 555055 823630 1110110 1647260 2220220 2553253 5106506 10213012 12766265 25532530 51065060